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Feb 8 13 tweets 8 min read
Discussion on shared security featuring @zmanian, @musalbas and @jadler0 happening now!

Read the thread for tweets from the livestream 👇
twitter.com/i/spaces/1OdKr…
"Blockchain security comes down to the question 'who can rug you?' How many actors need to collude to attack the system?" -@zmanian
@zmanian "A system with shared security has the property that in order to break one chain, you need to break them all." -@musalbas
@zmanian @musalbas "Until Celestia came along, the idea of a very scalable system of multiple chains with shared security was very hard." -@zmanian
@zmanian @musalbas "Celestia provides the core primitive that chains require to establish shared security—data availability." -@musalbas
@zmanian @musalbas "Cosmos’ interchain staking and Polkadot’s parachain slots models only scale to the order of 100s of chains.

In Celestia we see a world of millions of blockchains." -@musalbas
@zmanian @musalbas "The most important part of these systems is who can propose a block, and who can verify the state.

These core properties of a blockchain — censorship resistance and auditability — are what data availability provides." -@zmanian
@zmanian @musalbas "The real limitation on how many transactions a blockchain can process is I/O. Decoupling data availability from the I/O process is the only way that we’ll be able to produce petabytes of secure block space." -@zmanian
@zmanian @musalbas "The theoretical limit of safety of shared security is better, but the actual applied practical security at this moment is still in favor of Tendermint chains + IBC." -@zmanian
@zmanian @musalbas "Creating a DAO on ethereum is like incorporating under the law of a certain country.

The future model for blockchains I see is where each app has its own chain. In that model I see hard forks as a feature for social coordination." -@musalbas
“Scalability of a chain is measured by the throughput divided by the cost for an end user to verify it.” -@musalbas
“The invention of personal computers allowed individuals to be sovereign. The invention of blockchains allow communities to be sovereign.” -@musalbas quoting @buchmanster
“The combination of rollups, data availability and modular blockchains is one of the most exciting things happening in the space right now.” -@zmanian

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More from @CelestiaOrg

Feb 8
The Celestia Labs team is excited to introduce Celestiums, which are Ethereum L2 chains that use Celestia for data availability (DA) and Ethereum for settlement and dispute resolution. Read more: blog.celestia.org/celestiums/
Celestiums have a higher threshold of security than previous off-chain DA solutions by adopting a PoS validator set, and will allow for better data availability throughput.

At the core of a Celestium is the Quantum Gravity Bridge, a Celestia to Ethereum data availability bridge.
We’re excited to serve Ethereum L2 teams! Stay tuned for part 2 for more analysis on how Celestiums compare to other off-chain DA mechanisms from a cost and security standpoint.
Read 5 tweets
Jan 27
The benefits of modular blockchains 🧵

Modular blockchains are the result of separating the core components of a single blockchain and running them on separate layers.

Here’s what makes them powerful 👇
Scalability

Layers that specialize on a couple of core components allows for greater scalability innovations without the burden of making tradeoffs that come with a modular blockchain. For example, a modular DA layer with DA sampling can scale linearly with the number of users.
Interoperability

Blockchains can utilize a modular shared security layer, like Celestia, to enable trust-minimized bridging between blockchains in the same cluster. This increases both the security and ease at which blockchains can communicate with each other.
Read 5 tweets
Jan 12
Blockchain bootstrapping costs 🧵

While the ease at which new blockchains can be created and deployed has improved over time, there are hurdles and costs associated with doing so. Currently, an independent blockchain can be created using a template, but the difficulty comes...
from the requirement to launch a new coin with a large distribution and find validators to help bootstrap the network. This process is time-consuming and can become considerably expensive.

Celestia provides a minimal base layer that makes it simple to develop blockchains…
at a low cost and deploy them quickly. For example, Optimint is building a template for an optimistic rollup that, when paired with Celestia, will allow anyone to create a rollup and immediately deploy it without costs from token launches and sourcing a large validator set.
Read 4 tweets
Dec 27, 2021
Rollups on Celestia 🧵

Celestia does not support smart contract capabilities because it is designed to provide data and consensus for rollups, which will support them.

One advantage is that rollups will be able to explore new novel designs for settling proofs.
One approach is for rollups to distribute proofs directly on the p2p network.

In this case proofs aren’t posted on any settlement layer, they are verified locally by clients of the rollup. This is similar to how @MinaProtocol works.
Another model is for rollups to utilize a settlement layer for proof verification or dispute resolution.

The settlement layer is also helpful for cross-rollup communication and provides an exit mechanism for rollup users.

This is similar to how Ethereum rollups work today.
Read 5 tweets

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